How long is the status of limitations in CA for medical malpractice or misdiagnosed?

It's usually one year. You probably waited too long.

Should I make a counter offer on low Pain and Suffering offer?

You can always counter. A lawyer might help you do better.

Would a Personal injury lawyer be the way to go? My son's shoulder is still bothering him and he is not able to ride the bike.

I think you should get an attorney, yes. Lots of issues to be worked out here.

Given CCC 3045.1 says EMERGENCY services, is lien invalid? No cases on this that I can find.

What about the "ongoing" part? Lien is likely valid.

The defendant has no incentive to settle unless all heirs sign off on a release. Your best move is to do that and then work out the distribution.

If i was in a car accident and the other driver was at fault, would i still be compensated if my license was suspended?

If you had a suspended license, you're OK. If you didn't have insurance, your case could be limited.

I believe the Nursing Facility and the doctors whom we trusted nearly killed her. What can be done to help my mom and others ?

She has a case if they negligently OD'd her. The question comes down to what it's worth.

Please let me know what are my options. What do I need to file a case?

"Many years ago?" Probably not much you can do now.

Need to know how & what type of civil claim to file? Any complaints or current CA law that can assist me? THANK YOU FOR THE HELP

You need to go to the courthouse tomorrow and file suit, or get to a lawyer in the morning who can help you do so. You can file a form complaint...

I need an attorney to help me with demand letter

Wow. Don't bother with a demand letter. You need to hire an attorney ASAP.